similar to: [libvirt]Some questions about live migration

On Fri, Oct 18, 2019 at 15:00:19 +0800, Luyao Zhong wrote: > Hi libvirt experts, > > I have some questions about live migration. I'm assuming you are not asking about post-copy migration, since it is a bit more complicated as the current state if split between the source and destination hosts and none of them can keep running without the other until migration finishes. > * If a

Based on syslinux 6.03 Memory allocation and copy length should be SECTOR * size for sectors operation. Signed-off-by: Robert <luyao-c at 360.cn> diff --git a/com32/gpllib/disk/write.c b/com32/gpllib/disk/write.c index d183ade..3c9edff 100644 --- a/com32/gpllib/disk/write.c +++ b/com32/gpllib/disk/write.c @@ -40,7 +40,7 @@ int write_sectors(const struct driveinfo *drive_info, const

On Fri, Apr 03, 2015 at 10:13:38AM +0200, Kashyap Chamarthy wrote: > On Fri, Apr 03, 2015 at 10:08:21AM +0200, Kashyap Chamarthy wrote: > > Migration without --p2p works just fine, ie. the below works: > > > > > > $ virsh migrate --verbose --copy-storage-all \ > > --live cvm1 qemu+ssh://kashyapc@devstack3/system > > Migration: [100 %] >

Hello! After some mistakes yesterday we ( me and my colleague ) think that it will be wise for libvirt to check config file existence on remote side and through error if not, before migrating, otherwise migration will fail and VM fs can be damaged, because it is sort of remove of power plug... We missed twice yesterday :-( Could  you tell me is there already such option or any plans to

I'm trying to implement a virtualization API. I was testing migration with libvirt I got some problems. When I use the following command : *virsh migrate --live --persistent --copy-storage-all vm-clone1 qemu+ssh://server_ip/system* the migration works fine but in the destination host the migrated vm is paused and I can't unpause it and I need to reboot the vm to be able use it in the

Thanks for your answer, 1) In this case i'm not using shared storage, the migration is happening between two non-shared storage with full disk copy 2) I already created the file with same size, and the vm works properly after a restart, my problem that it remains paused and I can't resume it until it's rebooted. 3) I'm using qemu-kvm 1.0 On 24 November 2014 at 10:22, Michal

I will try a newer version. On 24 November 2014 at 11:30, Michal Privoznik <mprivozn@redhat.com> wrote: > On 24.11.2014 11:23, Dhia Abbassi wrote: > >> Thanks for your answer, >> >> 1) In this case i'm not using shared storage, the migration is happening >> between two non-shared storage with full disk copy >> 2) I already created the file with same

Hi There, I am using Libvirt 1.2.1 on Fedora 20. So, Libvirt is well installed and started but the weird thing is that the 'default' virtual network is not automatically defined and started, knowing that I can define/start it manually and everything goes fine. previously I was using libvirt 1.0.4 and the 'default' virtual network was defined/started at Libvirt startup. so,

Greetings, I am writing a code using libvirt API to migrate VM between two physical hosts *(QEMU/KVM) , *say some *n *number of times. *1)* I am using right now* virDomainPtr virDomainMigrate (.......) *and to calculate the total migration time I am using something like this: *clock_gettime(CLOCK_MONOTONIC_RAW,&begin); * *migrate*(domainToMigrate,nodeToMigrate);

Hello everyone, Can somebody point where I can find the code where libvirt makes the decision to complete a live migration? I mean, at some point syncronising the VM state, it has to decide that the delta left to be migrate is low enough to achieve downtime 0, so libvirt finishes the migration. This "low enough" must be defined somewhere in the code, but I am unable to find it.

13.09.2018 17:47, Jiri Denemark пишет: > On Thu, Sep 13, 2018 at 10:35:09 +0400, Dmitry Melekhov wrote: >> After some mistakes yesterday we ( me and my colleague ) think that it >> will be wise for libvirt to check config file existence on remote side > Which config file? > VM config file, namely qemu. We forgot to mount shared storage (namely gluster volume), on which we

Hi all, I talked to our oVirt developers who use CentOS for upstream development. And that's what makes their lives hard because it takes a long time before they can start using new features of libvirt. The latest released CentOS version is 7.2 with libvirt 1.2.17, which is pretty old. But even when CentOS 7.3 with libvirt 2.0.0 gets released, it will already be old since libvirt 2.5.0 is

Hey folks, I am running libvirt 1.2.4 and qemu 2.1 on a 3.14.27 kernel. I've found that live migrating a relatively large VM (16 cores and 64G ram) is taking forever - close to 15 hours now, and still not done... With "lsof -i", I can see a connection is established from my source hypervisor to a target hypervisor, likely for the purpose of copying data. nettop shows that this

Hi, I am using qemu hook script to track status of VM live migration - libvirt 1.2.9 as included in Debian Wheezy backports. I would like to be informed of the fact that VM migration has successfully finished as soon as possible. Based on the steps below, when would that be possible? Sample VM migration as detected by qemu hook script: 1.) Destination hypervisor: [10:27:42.224] Args: one-16

Hi all, I am trying to bring up lxc's using Libvirt JAVA API. I do the following: conn = Connect("lxc:\\\") xml_config = "<domain> .... <\domain>" dom = conn.domainCreateXML(xml_config, 0) dom.create() Using the above code, I am able to start a domain but the domain is not visible within the "lxc" list, i.e when I use the command "lxc-ls

This problem is found in meego testing: http://bugs.meego.com/show_bug.cgi?id=6672 A file in btrfs is mmaped and the mmaped buffer is passed to pwrite to write to the same page of the same file. In btrfs_file_aio_write(), the pages is locked by prepare_pages(). So when btrfs_copy_from_user() is called, page fault happens and the same page needs to be locked again in filemap_fault(). The fix is to

13.09.2018 18:57, Jiri Denemark пишет: > On Thu, Sep 13, 2018 at 18:38:57 +0400, Dmitry Melekhov wrote: >> >> 13.09.2018 17:47, Jiri Denemark пишет: >>> On Thu, Sep 13, 2018 at 10:35:09 +0400, Dmitry Melekhov wrote: >>>> After some mistakes yesterday we ( me and my colleague ) think that it >>>> will be wise for libvirt to check config file existence

We create two subvolumes (meego_root and meego_home) in btrfs root directory. And set meego_root as default mount subvolume. After we remount btrfs, meego_root is mounted to top directory by default. Then when we try to mount meego_home (subvol=meego_home) to a subdirectory, it failed. The problem is when default mount subvolume is set to meego_root, we search meego_home in meego_root but can not

hello , thanks for comments . I tried now with force options for CPU flag which were not supported . Now the command with non fully supported CPU model gets executed , But i am surprised to see that still Guest cpu model is not changed and still same as host cpu model(SAndy Bridge) Why don't i see the model as HAswell now , could you please comment. Command used : virt-install

I have installed samba 2.2.2 successfully on my linux box and have tested it perfectly on linux itself (smbclient //hostname/tmp). However, when I tried "net use x: \\hostname\tmp" on my win2000 professional laptop, it gave me "There are currently no logon servers available to service the logon request". What should I do? Thanks, Zhong